---Listen! Is Kitty in the next room?  ---No, it ______ be Kitty. She has gone to Beijing.
#76364
A
may not
B
can’t
C
mustn’t
D
needn’t
推荐题目
You       play computer games for a long time. It’s bad for your eyes.
#78345
A
should
B
shouldn’t
C
could
D
don’t have to
He has      for three or four days. 
#78091
A
got a headache
B
fallen ill
C
caught a cold
D
had a cough